Chaetocin, a natural product originally produced by Chaetomium species, is shown to have apoptotic effects on some cancer cells. Mechanistic studies show that chaetocin is taken up in the cells by a process that requires intact/unreduced disulfides for uptake. Once inside, this compound imposes oxidative stress and consequent apoptosis induction. Other studies have shown chaetocin to reduce lysine-specific histone methyltransferase effects of SUV39H, which play a key role in maintaining stable gene expression patterns during embryonic development and cellular differentiation. Additionally, this agent is reported to cause profound chromatin reorganization in fibroblast nuclei by inducing chromatin condensation/clustering. Consequentially, chaetocin impairs Trx (thioredoxin) systems, which are essential for deoxynucleotide synthesis and involved in a broad range of cellular functions. Chaetocin is an inhibitor of G9a, SUV39H1 and TrxR1.
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2. Isham, Crescent R., et al., 2007. Chaetocin: a promising new antimyeloma agent with in vitro and in vivo activity mediated via imposition of oxidative stress. Blood. 109(6): 2579-88. PMID: 17090648
3. Illner, Doris., et al., 2010. Remodeling of nuclear architecture by the thiodioxoxpiperazine metabolite chaetocin. Experimental cell research. 316(10): 1662-80. PMID: 20302859
See how others have used Chaetocin. Click on the entry to view the PubMed entry .
PMID: # 27924221 Liu, L. et al. 2016. Cell Discov. 2: 16036.
PMID: # 27467759 Das, S. et al. 2016. PLoS ONE. 11: e0160022.
PMID: # 27141211 Rombo, R. et al. 2016. German medical science : GMS e-journal. 14: Doc04.
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